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Ultra‐wide‐band pulse generation and radiation using a high Tc superconductor opening switch

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8 Author(s)
Lai, Y.S. ; Department of Electrical Engineering, University of Maryland, College Park, Maryland 20742 ; Funk, E.E. ; Cao, W.L. ; Lee, Chi H.
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A new method of generating ultra‐wide‐band electromagnetic pulses using a Tl2Ba2CaCu2O8 high Tc superconductor as a fast laser activated opening switch is presented. The superconductor is used as an opening switch with a current charged transmission line pulse forming network to produce jitter‐free triggered square pulses which are radiated by an ultra‐wide‐band conical antenna. We report radiation and reception of pulses with center frequencies near 3.5 GHz and a bandwidth in excess of 80%. We also discuss how this technique can be used to assess various wide‐band antenna designs.

Published in:

Applied Physics Letters  (Volume:65 ,  Issue: 8 )

Date of Publication:

Aug 1994

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